Can this be used under water?

Hey there, Thank you for reaching out. It technically can be used below the waterline but it's not recommended if the boat will see > 24 hours of submersion at a time

The label says it is "uv stable", what does that mean? does it provide uv protection?

Yes. Based on the description from Jamestown this is thinned varnish. Varnish has good UV protection but nothing last forever in the sun which is why varnish requires another couple coats every year. This is meant for the first couple of coats in about an 8 coat varnish job. Least that is how I use it. Your option is to thin your own or I have enough varnishing from bare wood that I bought this for convenience for the first couple coats then following with in my case Lust varnish also from Jamestown. I really like the Lust since I can overcoat again in about an hour versus a day for the other varnishes I had been using. Good luck!

Can total boat epoxy be used over the top of this?

I would not put epoxy over any sealer. ......

Is it a oil base water sealant or a stain coloring? What are the ingredients?

It is oil based and delivers a relatively clear coat that fills the wood grain quickly in preparation for varnish. However, you can add a solid stain directly to the sealer to get the “color” you desire.

ASIN	B01M0MZ89O
Best Sellers Rank	#11,336 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #64 in Hardware Sealers
Brand	TotalBoat
Brand Name	TotalBoat
Compatible Material	Engineered Wood
Coverage	60-100 sq ft per quart
Customer Reviews	4.6 out of 5 stars 367 Reviews
Finish Types	Gloss
Finish type	Gloss
Global Trade Identification Number	00811932022400
Item Form	Liquid
Item form	Liquid
Liquid Volume	1 Quarts
Liquid volume	1 Quarts
Manufacturer	Jamestown Distributors
Material	Wood
Material Type	Wood
Recommended Uses For Product	outdoor
Recommended uses for product	outdoor
UPC	811932022400
Unit Count	1.0 Count

Wood Sealer TotalBoat

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